feat: Add path parameters to script and update readme

[gismya]

• [x] I have added automatic tests where applicable
• [x] The PR title is suitable as a release note
• [x] The PR contains a description of what has been changed
• [x] The description contains manual test instructions

Changes

Adds an export of the main function in preparation of making this a NPM package. Adds different code paths if the code is run through the CLI or imported as a module. Also adds properties to the function to set the path.

Partially adresses #2 and fixes #1

Test

Test that the new path options work as intended